I am following the code from http://www.alistapart.com/articles/byebyeembed/ and it is working fine in Firex 4.0 but It is not working at all in IE9. I, even, cannot play the movie by pressing play button.
<object id='MediaPlayer1' width="320" height="285" classid='CLSID:22d6f312-b ... >
<param name='fileName' value="src.wmv">
<param name='animationatStart' value='true'>
<param name='transparentatStart' value='true'>
<param name='autoStart' value="false">
<param name='showControls' value="true">
<param name='loop' value="true">
<param name="wmode" value="transparent">
<embed type='application/x-mplayer2'
pluginspage='http://microsoft.com/windows/mediaplayer/en/download/'
id='MediaPlayer2' name='mediaPlayer' displaysize='4' autosize='-1'
bgcolor='darkblue' showcontrols="true" showtracker='-1'
showdisplay='0' showstatusbar='-1' videoborder3d='-1' width="522" height="350"
src="src.wmv" autostart="true" designtimesp='5311' loop="true" )
</embed>
</object>
This will surely have your answer :) I was going to type it out here for you, but its already here!